package com.cy.jt.security.config.handler;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;

/**
 * 处理没有认证的访问异常
 */
public class DefaultAuthenticationEntryPoint implements AuthenticationEntryPoint {
    @Override
    public void commence(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, AuthenticationException e) throws IOException, ServletException {
        httpServletResponse.setCharacterEncoding("utf-8");
        httpServletResponse.setContentType("application/json;charset=utf-8");
        PrintWriter out = httpServletResponse.getWriter();
        Map<String, Object> map = new HashMap<>();
        map.put("state",HttpServletResponse.SC_UNAUTHORIZED);
        map.put("msg", "请先登录");
        String jsonStr = new ObjectMapper().writeValueAsString(map);//处理成json
        out.println(jsonStr);
        out.flush();
    }
}
